CN201239278Y - System for adjusting lifting speed of medical sick bed - Google Patents
System for adjusting lifting speed of medical sick bed Download PDFInfo
- Publication number
- CN201239278Y CN201239278Y CNU2007201823798U CN200720182379U CN201239278Y CN 201239278 Y CN201239278 Y CN 201239278Y CN U2007201823798 U CNU2007201823798 U CN U2007201823798U CN 200720182379 U CN200720182379 U CN 200720182379U CN 201239278 Y CN201239278 Y CN 201239278Y
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- sick bed
- speed
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Abstract
The utility model relates to a system used for adjusting the lifting speeds of a medical sickbed, which comprises a motor unit, a main control unit, a switching unit and a driving unit, wherein the main control unit utilizes feedback signals fed back by the motor unit to judge the operation states of the medical sickbed and controls the switching unit to switch the operation speeds of the motor unit according to judgment results so that the motor unit can operate at two stage speeds, and the medical sickbed in rapidly switching the operation states can obtain buffer.
Description
Technical field
This utility model relates to a kind of medical sick bed, particularly relevant for a kind of in order to adjust the control system of medical sick bed rising or falling speed.
Background technology
The main purpose of medical treatment sick bed is obtained suitable rest for providing thereon patient bed, make the patient who couches on medical sick bed, with early recovery.In order to make medical sick bed be changed the running kenel according to the demand of sufferer itself or according to the demand of medical procedure, for example change over heeling condition or case of bending etc. by level, the general curative sick bed all can be provided with the lifting bedstead, couch thereon with the parts of body that patient is provided, and the lifting bedstead can also be adjusted to suitable angle, so that patient is in using go up required.
Along with the progress of science and technology, the lifting of medical sick bed, the adjustment of inclination also develop into present electrodynamic type by the mode of manual rocking bar.But when healthcare givers's desire is carried out as treatment actions such as CPR to sufferer, the motor apparatus that adopts simple key-press to control in order to control medical sick bed lifting action presents failure state, just utilize to break away from the gear that engages between motor apparatus and the screw rod, make screw rod lose motor control, and make medical sick bed the medical sick bed that presents bending or inclination originally be returned to level automatically with the fastest speed, give treatment to action to make things convenient for the healthcare givers.
Yet, though such control method can return to level with very fast speed, make the sufferer couch on it feel very uncomfortable because of strenuous vibration also, and engage gear when engaging once more between motor apparatus and the screw rod, easily because engaging is incomplete, and the engaging gear is crumbled, cause the screw rod life-span to shorten.For this reason, this utility model will propose one and solve above-mentioned problem in order to the control system of controlling medical sick bed rising or falling speed.
Summary of the invention
Goal of the invention of the present utility model is to overcome the deficiencies in the prior art and defective, proposes a kind ofly to operate with two-part speed in order to adjust the control system of medical sick bed rising or falling speed, and making under special circumstances fast, the medical sick bed of variable condition can obtain to cushion.
For reaching above-mentioned purpose, this utility model provides the medical sick bed rising or falling speed of a kind of adjustment system, comprises: a driver element, drive at least one motor apparatus, and make a medical sick bed change its operating state; An and main control unit, be connected in this driver element, and, start a speed regulation function and control this driver element to drive this motor apparatus according to the pairing control instruction of a special key, make this medical treatment sick bed return to level apace, and obtain buffering.
For reaching above-mentioned purpose, this utility model provides the medical sick bed rising or falling speed of also a kind of adjustment system, comprises: a driver element, drive at least one motor apparatus, and make a medical sick bed return to level by case of bending; An and main control unit, be connected in this driver element, and according to the pairing control instruction of a special key, control this driver element and drive this motor apparatus, and judge whether the angle between this a medical treatment sick bed and a horizontal plane is lower than a default value, return to a normal value with the speed that this medical treatment sick bed is descended, wherein this normal value is the speed that this medical treatment sick bed lies low downwards under normal situation.
In first embodiment provided by the utility model, at first, user must be by next in order to control the special key that medical sick bed returns to level fast.Main control unit can be according to the pairing control instruction of this special key, produce corresponding control signal, switch to second winding with further control switch unit by first winding of second terminal of motor apparatus, and the control drive circuit drives motor apparatus in order to the head block that drives medical sick bed, makes the motor apparatus quick acting.
Simultaneously, the motor apparatus in the running can constantly return and operate relevant feedback signal to main control unit, to calculate the state of present motor apparatus running.When position that the head block of medical sick bed descends at present during near horizontal plane, main control unit can start pulse width modulation function to be controlled the running speed of motor apparatus and descends, to reach buffered purpose.
In second embodiment provided by the utility model, be different with first embodiment, when position that the head block of medical sick bed descends at present during near horizontal plane, main control unit can provide corresponding control signal again, come the controlled selection switch to switch back first winding of second terminal of motor apparatus, make the speed of the head block decline of medical sick bed recover normal, to reach buffered purpose.
The utlity model has following useful technique effect:
1, utilize the electronic type control method, control medical sick bed and operate with two-part speed, making under special circumstances fast, the medical sick bed of variable condition can obtain buffering.Thus, sufferer at medical sick bed at the Fast transforms state in particular cases is able to fast and cosily couch in being transformed on the bed surface of level by bending or heeling condition.
2, the main control unit of medical sick bed is because of being provided with a speed control unit and an angle calculation unit, and be able to feedback signal according to motor apparatus passback, calculate the state of medical sick bed running, further to control the running speed of motor apparatus according to result calculated.
3, utilize arbitrary end of motor apparatus to have the characteristic of two different windings, when user is pressed special key, main control unit will switch to second winding by first winding of the wherein end of motor apparatus, make speeding up of medical sick bed transition state.
4, when the angle of each block of medical sick bed and horizontal plane is less than or equal to a default value, speed control unit will start the speed that the PWM function is adjusted each block change, to reach buffered purpose.
5, when the angle of each block of medical sick bed and horizontal plane is less than or equal to a default value, speed control unit will be controlled motor apparatus and switch back first winding again by second winding, to adjust the speed of each block change, reach buffered purpose.
Description of drawings
Fig. 1 is the block schematic diagram in order to the system that adjusts medical sick bed start speed of the present utility model;
Fig. 2 for this utility model embodiment in order to adjust the block schematic diagram that medical sick bed recovers the system of level speed;
Fig. 3 is the method flow diagram of the control medical treatment sick bed start speed of this utility model first embodiment;
Fig. 4 is the method flow diagram of the control medical treatment sick bed start speed of this utility model second embodiment.
Symbol description among the figure
10 main control units
110 speed control circuits
120 angle calculation circuit
20 driver elements
30 switch units
40 motor units
The VDD voltage source
Q1, Q2, Q3, Q4 transistor
A, B, C, D control signal
The specific embodiment
This utility model is applicable to the medical sick bed in each medical institutes, especially possesses the medical sick bed that automatic control system is arranged.When sufferer being carried out emergency medical service such as CPR treatment action when healthcare givers's desire, utilize an external control device not causing sufferer to be felt under the uncomfortable situation, make medical sick bed revert to level automatically and fast.
Please refer to shown in Figure 1ly, it is the block schematic diagram in order to the control system of adjusting medical sick bed rising or falling speed of the present utility model.This system comprises a main control unit 10, a driver element 20, switches a unit 30 and a motor unit 40.Wherein, main control unit 10 is connected in driver element 20, switch unit 30 and motor unit 40, and driver element 20 also is connected in switch unit 30 and motor unit 40, and switch unit also is connected in motor unit 40.
Wherein, this outside controller is provided with a special button (not illustrating), for example cardiopulmonary resuscitation (cardio pulmonary resuscitation, CPR) quick button etc.After user was pressed the quick button of this CPR, medical sick bed will revert to level automatically by the state that originally presents bending or inclination, sufferer was carried out the treatment action of CPR to make things convenient for the healthcare givers.
Driver element 20 comprises at least one drive circuit (not illustrating), produces the driving signal in order to the control signal that is provided according to main control unit 10, with at least one motor apparatus (not illustrating) in the drive motor unit 40.
Switch unit 30 comprises at least one and selects switch (not illustrating), and each selects switch to have a plurality of toggle paths (switching path, the quantity of toggle path is proportional to the winding quantity of motor apparatus).The control signal of this switch unit 30 in order to be provided according to main control unit 10 switches above-mentioned toggle path.Therefore, driver element 20 just can utilize selecteed toggle path, makes to drive signal and further come motor apparatus in the drive motor unit 40, just provides the motor apparatus running required electric power.
For instance, suppose that the head block of medical patient couch top presents the state of kicking up at this moment.When user is pressed the quick button of this CPR, the main control unit 10 of this system will be controlled this medical sick bed and recover level.Please refer to shown in Figure 2, its for this utility model embodiment in order to adjust system's block schematic diagram that medical sick bed recovers level speed.
In this embodiment because 10 need of main control unit control a motor apparatus, so in the driver element 20 only with a drive circuit as signal, in the switch unit 30 only with a selection switch as signal.And main control unit 10 comprises a speed control circuit 110 and an angle calculation circuit 120.
Thus, main control unit 10 is just provided corresponding control signal to driver element 20 and switch unit 30.Wherein, providing is control signal A, B, C, D to the drive circuit of driver element 20.
Have transistor Q1, Q2, Q3, Q4 (change-over switch) in the drive circuit of this driver element 20.The conducting of transistor Q1 is controlled by control signal A, and the conducting of transistor Q2 is controlled by control signal B, and the conducting of transistor Q3 is controlled by control signal C, and the conducting of transistor Q4 is then controlled by control signal D.Transistor Q1 can with transistor Q4 conducting simultaneously, transistor Q2 then can with transistor Q3 conducting simultaneously.
Because each motor apparatus all possesses the first terminal and second terminal is arranged, suppose to work as the first terminal and receive positive voltage position standard, and second terminal is when receiving negative, motor apparatus can present the forward start; When the first terminal receives negative, and second terminal to receive the positive voltage position punctual, motor apparatus can present reverse start.
Therefore, when user desired to make medical sick bed that the head block rises to return to level, main control unit 10 just can be exported and control signal B and C according to the corresponding control instruction of the quick button of this CPR, makes transistor Q2 and transistor Q3 conducting.
At this moment, the negative of the drain electrode end of the transistor Q2 after the conducting is supplied to the first terminal of motor apparatus, and the switching of the selection switch that the positive voltage position criterion of the source terminal of the transistor Q3 after the conducting can be by switch unit 30 is supplied to first winding or second winding of second terminal of motor apparatus.Thus, the motor apparatus that receives reverse electric power can be carried out counteragent, makes medical sick bed recover level.
On the contrary, when user desires to make the head block of the medical sick bed that presents level to rise, as long as the corresponding control instruction of input is to main control unit 10, main control unit 10 just can be exported control signal A and D according to this control instruction, makes transistor Q1 and transistor Q4 conducting.
At this moment, the positive voltage position of the source terminal of the transistor Q1 after the conducting will definitely be by switch unit 30 the switching of selection switch be supplied to the first terminal of motor apparatus, the negative of the drain electrode end of the transistor Q4 after the conducting then is supplied to first winding of second terminal of motor apparatus.Thus, the motor apparatus that receives forward power can be carried out positive action, and the head block of medical sick bed is risen.Wherein, select switch can be a relay.
In order to illustrate further embodiment content of the present utility model, please refer to shown in Figure 3, illustrate that the healthcare givers carries out the treatment action of CPR to sufferer for convenience, and make the medical sick bed that the head block rises return to level, and control the method for medical sick bed start speed.Wherein, Fig. 3 is the method flow diagram of the control medical treatment sick bed start speed of this utility model first embodiment.
In this embodiment, at first, user must be pressed and be arranged at around the medical sick bed or the special key on the peripheral control unit, becomes level further to make medical sick bed by the recovering state of bending originally or inclination, as step S310.After the corresponding control instruction that is provided by special key was provided, main control unit 10 can make speed control circuit 110 computings produce corresponding control signal, and be sent to the selection switch and the driver element 20 of switch unit 30 according to this control instruction.
The selection switch that receives the control signal can be controlled signal according to this, makes one of them outfan of the drive circuit of driver element 20 be connected in second winding of second terminal of the motor apparatus in the motor unit 40.Receive the drive circuit of control signal B, C, to supply reverse electric power to selecting switch, further to be supplied to the first terminal of motor apparatus and second winding of second terminal according to the selection toggle path that switch was provided, make the motor apparatus quick acting, the head block of medical sick bed is descended fast, as step S320.
In addition on the one hand, motor apparatus in the running also can constantly return and operate the angle calculation circuit 120 of relevant feedback signal to main control unit 10, make angle calculation circuit 120 be able to calculate the state of present motor apparatus running according to this feedback signal, just calculate the head block of medical sick bed and the angle value between the horizontal plane, with the present position that descends of the head block of judging present medical sick bed, as step S330.
Then, main control unit 10 can calculate the result of the feedback signal of motor apparatus passback according to angle calculation circuit 120, judge that whether position that the head block of medical sick bed descends is near horizontal plane, judge just whether the angle value between head block and the horizontal plane is lower than a default value, as step S340.
The result of calculation of judging angle calculation circuit 120 when main control unit 10 is during still greater than this default value, represents that position that the head block of medical sick bed descends at present is as yet near horizontal plane.Therefore, the speed control circuit 110 of main control unit 10 can continue to descend with the velocity amplitude of uniform velocity by the control motor apparatus.Wherein, the velocity amplitude of uniform velocity is faster than the normal speed of medical sick bed running, and the normal speed of medical sick bed is just at normal condition (be non-press this special key and the situation of start) default velocity amplitude down.
The result of calculation of judging angle calculation circuit 120 when main control unit 10 is during less than this default value, represents that position that the head block of medical sick bed descends at present is near horizontal plane.Therefore, the speed control circuit 110 of main control unit 10 can start pulse wave width modulation (pulse widthmodulation, PWM) function, the frequency of just utilizing control signal B, C to control transistor Q2 in the drive circuit, Q3 conducting and end, the running speed of controlling motor apparatus descends, to reach buffered purpose, as step S350.
At last, when the head block of medical sick bed has dropped to horizontal plane, when making the bed surface of whole medical sick bed present level, then speed control circuit 110 will be exported the control signal, control first winding that selection switch in the switch unit 30 switches back second terminal of motor apparatus, and the start of end motor apparatus, as step S360.
In second embodiment of the present utility model, as shown in Figure 4, main control unit 10 will be controlled the start speed of medical sick bed in another way, and wherein Fig. 4 is the method flow diagram of the control medical treatment sick bed start speed of this utility model second embodiment.
At first, user must be pressed earlier equally and be arranged at around the medical sick bed or the special key on the peripheral control unit, make main control unit 10 meetings according to this control instruction, make speed control circuit 110 computings that the corresponding control instruction that provides by special key is provided produce corresponding control signal, and be sent to the selection switch and the driver element 20 of switch unit 30, as step S410.
The selection switch that receives the control signal can be controlled signal according to this, makes one of them outfan of the drive circuit of driver element 20 be connected in second winding of second terminal of the motor apparatus in the motor unit 40.Receive the drive circuit of control signal B, C, to supply reverse electric power to selecting switch, further to be supplied to the first terminal of motor apparatus and second winding of second terminal according to the selection toggle path that switch was provided, make the motor apparatus quick acting, the head block of medical sick bed is descended fast, as step S420.
In addition on the one hand, motor apparatus in the running also can constantly return and operate the angle calculation circuit 120 of relevant feedback signal to main control unit 10, make angle calculation circuit 120 be able to calculate the state of present motor apparatus running according to this feedback signal, just calculate the head block of medical sick bed and the angle value between the horizontal plane, with the present position that descends of the head block of judging present medical sick bed, as step S430.
Then, main control unit 10 can calculate the result of the feedback signal of motor apparatus passback according to angle calculation circuit 120, judge that whether position that the head block of medical sick bed descends is near horizontal plane, judge just whether the angle value between head block and the horizontal plane is lower than a default value, as step S440.
The result of calculation of judging angle calculation circuit 120 when main control unit 10 is during still greater than this default value, represents that position that the head block of medical sick bed descends at present is as yet near horizontal plane.Therefore, the speed control circuit 110 of main control unit 10 can continue to descend with the velocity amplitude of uniform velocity by the control motor apparatus.
The result of calculation of judging angle calculation circuit 120 when main control unit 10 is during less than this default value, represents that position that the head block of medical sick bed descends at present is near horizontal plane.Therefore, the speed control circuit 110 of main control unit 10 can provide corresponding control signal again, come the controlled selection switch to switch back first winding of second terminal of motor apparatus, make the speed of the head block decline of medical sick bed recover normal, be that uniform velocity descends, to reach buffered purpose, as step S450.
At last, when the head block of medical sick bed has dropped to horizontal plane, when making the bed surface of whole medical sick bed present level, finish the start of motor apparatus, as step S460.
Advantage provided by the utility model is, utilizes the electronic type control method, controls medical sick bed and operates with two-part speed, and making under special circumstances fast, the medical sick bed of variable condition can obtain buffering.Thus, sufferer at medical sick bed at the Fast transforms state in particular cases is able to fast and cosily couch in being transformed on the bed surface of level by bending or heeling condition.
Another advantage provided by the utility model is, the main control unit of medical treatment sick bed is because of being provided with a speed control unit and an angle calculation unit, and be able to feedback signal according to motor apparatus passback, calculate the state of medical sick bed running, further to control the running speed of motor apparatus according to result calculated.
An advantage more provided by the utility model is, utilize arbitrary end of motor apparatus to have the characteristic of two different windings, when user is pressed special key, main control unit will switch to second winding by first winding of the wherein end of motor apparatus, make speeding up of medical sick bed transition state.
An advantage more provided by the utility model is, when the angle of each block of medical sick bed and horizontal plane is less than or equal to a default value, speed control unit will start the speed that the PWM function is adjusted each block change, to reach buffered purpose.
The advantage again that this provided is, when the angle of each block of medical sick bed and horizontal plane is less than or equal to a default value, speed control unit will be controlled motor apparatus and switch back first winding again by second winding, to adjust the speed of each block change, reach buffered purpose.
Appended graphic reference and the explanation usefulness of only providing not is to be used for this utility model is limited.The above only is a preferable possible embodiments of the present utility model, and is non-so promptly limit to claim of the present utility model, thus use such as this description and accompanying drawing content institute for it equivalent structure change, all in like manner be contained in the scope of the present utility model.
Claims (12)
1. one kind in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, comprises:
One driver element drives at least one motor apparatus, makes a medical sick bed change its operating state; And
One main control unit, be connected in this driver element, and, start a speed regulation function and control this driver element to drive this motor apparatus according to the pairing control instruction of a special key, make this medical treatment sick bed return to level apace, and obtain buffering.
2. as claimed in claim 1ly it is characterized in that in order to adjust the system of medical sick bed rising or falling speed described main control unit comprises a speed control circuit, this speed control circuit is regulated the speed of this motor apparatus running according to this speed regulation function.
3. as claimed in claim 2 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, described main control unit further comprises an angle calculation circuit, the back coupling signal that this angle calculation circuit returns according to this motor apparatus calculates the angle between this a medical treatment sick bed and the horizontal plane, further to judge whether to start this speed regulation function.
4. as claimed in claim 1 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, described motor apparatus further comprises one first winding and one second winding, make this motor apparatus control the speed of this motor apparatus running by the switching between this first winding or second winding, wherein this first winding makes this medical treatment sick bed descend with normal speed, and this second winding descends this medical treatment sick bed apace.
5. as claimed in claim 4 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, further comprise one and switch the unit, be connected in this main control unit, this driver element and this motor apparatus, and switch between this first winding and this second winding.
6. as claimed in claim 5ly it is characterized in that in order to adjust the system of medical sick bed rising or falling speed described switch unit comprises at least one relay.
7. one kind in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, comprises:
One driver element drives at least one motor apparatus, makes a medical sick bed return to level by case of bending; And
One main control unit, be connected in this driver element, and according to the pairing control instruction of a special key, control this driver element and drive this motor apparatus, and judge whether the angle between this a medical treatment sick bed and a horizontal plane is lower than a default value, return to a normal value with the speed that this medical treatment sick bed is descended, wherein this normal value is the speed that this medical treatment sick bed lies low downwards under normal situation.
8. as claimed in claim 7 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, described main control unit comprises an angle calculation circuit, and the back coupling signal that this angle calculation circuit returns according to this motor apparatus calculates the angle between this a medical treatment sick bed and the horizontal plane.
9. as claimed in claim 8 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, described main control unit further comprises a speed control circuit, and this speed control circuit is regulated the speed that this medical treatment sick bed descends according to the result of calculation of this angle calculation unit.
10. as claimed in claim 7 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, described motor apparatus further comprises one first winding and one second winding, make this motor apparatus control the speed that this medical treatment sick bed descends by the switching between this first winding or second winding, wherein this first winding makes this medical treatment sick bed descend with normal speed, and this second winding descends this medical treatment sick bed apace.
11. it is as claimed in claim 10 in order to adjust the system of medical sick bed rising or falling speed, it is characterized in that, further comprise one and switch the unit, be connected in this main control unit, this driver element and this motor apparatus, and switch between this first winding and this second winding.
12. as claimed in claim 11ly it is characterized in that in order to adjust the system of medical sick bed rising or falling speed described switch unit comprises at least one relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201823798U CN201239278Y (en) | 2007-10-23 | 2007-10-23 | System for adjusting lifting speed of medical sick bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201823798U CN201239278Y (en) | 2007-10-23 | 2007-10-23 | System for adjusting lifting speed of medical sick bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201239278Y true CN201239278Y (en) | 2009-05-20 |
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ID=40712566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201823798U Expired - Fee Related CN201239278Y (en) | 2007-10-23 | 2007-10-23 | System for adjusting lifting speed of medical sick bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201239278Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920242A (en) * | 2014-04-02 | 2014-07-16 | 深圳市腾飞宇科技有限公司 | Automatic horizontal adjustment system of medical supporting table |
-
2007
- 2007-10-23 CN CNU2007201823798U patent/CN201239278Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920242A (en) * | 2014-04-02 | 2014-07-16 | 深圳市腾飞宇科技有限公司 | Automatic horizontal adjustment system of medical supporting table |
| CN103920242B (en) * | 2014-04-02 | 2016-08-17 | 深圳市腾飞宇科技有限公司 | A kind of automatic horizontal regulation system of therapeutic support platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANG GUNG MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHANGGENG MEDICAL APPARATUS CO., LTD. Effective date: 20120604 Owner name: CHANG GUNG MEDICAL TECHNOLOGY (XIAMEN) CO., LTD. Effective date: 20120604 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120604 Address after: Taipei City, Taiwan, China Co-patentee after: Chang Gung Medical Technology (Xiamen) Co., Ltd. Patentee after: Chang Gung Medical Technology Co., Ltd. Address before: Taipei City, Taiwan, China Patentee before: Chang Gung Medical Supplies & Equipment Corp. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20131023 |